I had assigned UICulture to Chinese(zh-CN).
And the content of button in the Toolbar/Command has been show in Chinese.
But when editing mode is PopUp, and I click 'Add new item'/'Edit' button popup a window.
That title still show in English.
Is a Bug?
Or give me a solution.
And why the second textbox's width in the popup window is too long.
See more detail in the attachment file.